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What type of elastic material is an O-Ring typically made from?

Plastic

Rubber

O-Rings are commonly made from rubber due to its excellent elasticity and ability to provide a tight seal in various applications. Rubber can easily stretch and return to its original shape, which is essential for creating a proper seal when the O-Ring is compressed between two surfaces. This material also exhibits good resistance to compression set, allowing it to maintain its sealing properties over time.

While silicone is also a type of rubber and is used for specific O-Ring applications due to its high temperature tolerance and flexibility, the generic term “rubber” encompasses a broader range of formulations that are traditionally used for O-Rings, including nitrile, neoprene, and fluorocarbon rubbers. Thus, rubber is the most accurate and commonly accepted answer regarding the material composition of O-Rings.

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Steel

Silicone

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